diff --git a/headers/private/kernel/fs/fd.h b/headers/private/kernel/fs/fd.h
index 1ed605b295..0312b5fd5d 100644
--- a/headers/private/kernel/fs/fd.h
+++ b/headers/private/kernel/fs/fd.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright 2002-2006, Axel Dörfler, axeld@pinc-software.de.
  * Distributed under the terms of the MIT License.
  */
@@ -85,6 +85,7 @@ extern status_t close_fd_index(struct io_context *context, int fd);
 extern void put_fd(struct file_descriptor *descriptor);
 extern void disconnect_fd(struct file_descriptor *descriptor);
 extern void inc_fd_ref_count(struct file_descriptor *descriptor);
+extern int dup_foreign_fd(team_id fromTeam, int fd, bool kernel);
 extern status_t select_fd(int32 fd, struct select_info *info, bool kernel);
 extern status_t deselect_fd(int32 fd, struct select_info *info, bool kernel);
 extern bool fd_is_valid(int fd, bool kernel);
diff --git a/src/system/kernel/fs/fd.cpp b/src/system/kernel/fs/fd.cpp
index a7b73c40b9..019a852662 100644
--- a/src/system/kernel/fs/fd.cpp
+++ b/src/system/kernel/fs/fd.cpp
@@ -449,6 +449,46 @@ dup2_fd(int oldfd, int newfd, bool kernel)
 }
 
 
+/*!	Duplicates an FD from another team to this/the kernel team.
+	\param fromTeam The team which owns the FD.
+	\param fd The FD to duplicate.
+	\param kernel If \c true, the new FD will be created in the kernel team,
+			the current userland team otherwise.
+	\return The newly created FD or an error code, if something went wrong.
+*/
+int
+dup_foreign_fd(team_id fromTeam, int fd, bool kernel)
+{
+	// get the I/O context for the team in question
+	InterruptsSpinLocker teamsLocker(gTeamSpinlock);
+	struct team* team = team_get_team_struct_locked(fromTeam);
+	if (team == NULL)
+		return B_BAD_TEAM_ID;
+
+	io_context* fromContext = team->io_context;
+	vfs_get_io_context(fromContext);
+
+	teamsLocker.Unlock();
+
+	CObjectDeleter<io_context> _(fromContext, vfs_put_io_context);
+
+	// get the file descriptor
+	file_descriptor* descriptor = get_fd(fromContext, fd);
+	if (descriptor == NULL)
+		return B_FILE_ERROR;
+	CObjectDeleter<file_descriptor> descriptorPutter(descriptor, put_fd);
+
+	// create a new FD in the target I/O context
+	int result = new_fd(get_current_io_context(kernel), descriptor);
+	if (result >= 0) {
+		// the descriptor reference belongs to the slot, now
+		descriptorPutter.Detach();
+	}
+
+	return result;
+}
+
+
 static status_t
 fd_ioctl(bool kernelFD, int fd, ulong op, void *buffer, size_t length)
 {